Olivanova

A couple of days ago I did some performance tests between Oracle 10g (Express) and Oracle TimesTen. As with any commercial products, there is some licensing and costs involved. Obviously, our idea was then to look for a more cost efficient solution in order to get the same results. We specifically looked at H2, a Java SQL Database. This DBMS can operate in several different modes such as embedded, server and in-memory and has compatibility modes for certain commcercial database products like DB2, MySql, MS SQL Server, Oracle and some others. So, looking at the feature list, this seemed to be a good fit. ...

Just recently, I had been asked to compare the performance of Oracle 10g and Oracle TimesTen In-Memory database. We wanted to evaluate to what extent the performance of a mission critical system could be increased by using an in-memory database like Oracle TimesTen compared to a “regular” RDBMS like Oracle 10g. I used a sample application generated from OLIVANOVA in order to compare these different scenarios. The application is based upon a three-tier architecture with a JSF client, J2EE business logic and a RDBMS. The JSF client as well as the business logic have been deployed on a JBoss application server. ...

As stated in a recent post, I’ve been able to create a Silverlight 4 client that accesses an OLIVANOVA generated business logic using WCF RIA Services. Well, the actual code to enable this scenario is in fact not that complicated (once you learned how to write Silverlight enabled WCF RIA Services). The big advantage for me is that the complete business logic can be generated with OLIVANOVA’s model driven software development approach. ...

OLIVANOVA can generate code for application information logs automatically: for .NET environments OLIVANOVA uses the System.Diagnostics.Trace class included in the .NET Framework for J2EE platforms OLIVANOVA uses log4j

I just recently did some evaluation on OLIVANOVA (original URL https://www.care-t.com) along with TimesTen In-Memory Database as the persistence layer. OLIVANOVA is a model driven software development environment that generates code for business software**.** Certified database management systems include all major relational database management systems such as Microsoft SQL Server, Oracle, DB2 and so on. One of OLIVANOVA’s customers required instant responsiveness and very high throughput. So, this was a welcome opportunity for me to evaluate TimesTen, an In-Memory database. I created the model, generated the source code and specified the driver and connection string. In a few minutes I was able to test the application against TimesTen. ...

To me, Silverlight has always been a fascinating technology. I started playing around with Silverlight back in September 2007. Since then, I always wanted to create a Silverlight user interface for OlivaNova. With the first versions, the lack of standard data controls made it really difficult to implement a data-driven application. A lot has changed since then and today the time is ripe to begin afresh. The software architecture basically looks like this: ...

In the first part of this post, I wanted to show how easy it is to access information from the currently logged in user and store this information in an action the user executes (who created/changed a record). Now, what happens, if we have several groups of users (roles)? Well, I could create some IF..ELSE block for each role, but this would probably be not a good idea. A much better approach is to create a base class within the model and inherit all roles from this. So, the model could for instance look like this: ...

Almost any business application I delivered contains some kind of audit information. Depending on the size and the type of application this information is more or less sufficiently distinctive. Some typical information is almost always “who did what when?”. Sometimes a “why” would also be a justifiable question, but this is out of the scope for now. So, by using a model driven software development approach along with OlivaNova, this is easy. Let’s say, I want to create a new customer in a small CRM system. The class I created for the customer looks like this: ...

If you want to learn more about model driven software development and how to create your first “Hello World!” example, then please have a look at these tutorials. They explain how to start using the OlivaNova Modeler. All tutorials are available here: https://www.care-t.com/Evaluation/index.asp?menu=2

An Evaluation Version for OLIVANOVA products is available for everybody on CARE’s website. CARE stands for Computer Aided Requirements Engineering and is the producer of the MDA product OLIVANOVA. OLIVANOVAEvaluation Version consists of: OLIVANOVA Modeler Evaluation Version setup OLIVANOVA Transformation Engines services available for 30 days A flash demo that explains the OLIVANOVA development lifecycle from scratch. A set of tutorials that explains how to model and generate a sample application. A set of howtos that explains how to deploy the obtained source code. The OLIVANOVA Evaluation Version is available from the CARE website. This site contains two tabs: ...